Siemens SINAMICS DCM Manual página 787

Terminal
Encoder 1
Enc_typ sel
0 = No encoder
CUD
p0400[E]
X177
P15
41
M
42
Measuring gear activate
Track 1 +
43
Track 1 í
44
Track 2 +
45
Track 2 í
46
or
Track 0 +
47
Track 0 í
48
p0412[E]
and
p0432[E]/
p0433[E]
DRIVE-CLiQ
Terminal
Encoder 2
Encoder Sensor Module
Enc_interf comp_no
p0141[E]
Encoder comp_no
p0142[E]
SMx
<6>
SM properties Encoder n
r0458
<1> For rotary encoders = pulse number setting.
For resolvers = pole pair number setting.
<2> Assignment of the indices: Index [n-1] Encoder n
Index [0] Encoder 1
Index [1] Encoder 2
Index [2] Reserved
1 2
DO: DC_CTRL
Encoder evaluation - Position sensing, encoders 1 ... 2
Enc_config eff Sq-wave enc A/B Enc grid div
p0404[E] p0405[E] p0407[E]
Enc fine
position tracking
1
Gx_XIST1
p0411.0[E]
1 2
p0418[E]
A
incr
B
0
n
x2
Position raw signals
1
Hardware
A
type
sin/cos multiplication
B
1 signal period
1 signal period
Enc fine
Gx_XIST2
p0419[E]
Cyclic absolute
position value
n
x2
(only for absolute value encoders,
e.g. EQN)
Enc Gn_STW
Encoder control word
[4720.4] r0487[n-1]
<2>
<3> Generating the two's complement.
<4> Gn_XIST1 is a free-running position value.
The external control must process the overflows.
3 4
<1>
Absolute encoder configuration
Rot enc pulse No.
(Number of signal periods per
Enc abs
track and encoder revolution) multiturn
p0408[E]
p0421[E]
Enc inv act value
2
p0410.1[E]
n
2
A
0
up
-1
III
dn
1
n
2
32 Bit <3>
B
Free-running
position counter
Load gear activate position tracking
p2720.0[D]
With SSI encoder: Absolute position information
0
1
Reference mark position
p2721[D]
[4735.8]
and
p2504[D]/p2505[D]
Absolute value
Encoder
Error code
error
processing
Bit 14-15
Enc Gn_ZSW
[4730.5] r0481[n-1]
<5> The contents of r0483/r2723 are determined by the encoder status word/control
word. See [4720] and [4730].
<6> Interface SSI.
5
fp_4704_13_eng.vsd
14.08.18 V01.05.00
PROFIdrive sampling time
Enc abs Enc abs
meas step singleturn
Enc rot dist ZM
p0422[E] p0423[E] p0425[E]
[E]
Raw position signals
Dir of rot
p1821[D]
Number of
signal periods
0
31 n n-1 0
-1
1
Fine resolution
(hardware-type
multiplication)
32
2 -1
0
0
Sequence control
-1
&
1
0
-1
1
Function selection
Encoder status bits
Bit 0-13
to Gn_ZSW
F31100...A33905
"Encoder faults/alarms"
Encoder status word
p0979[0...25]
"Encoder format acc.
to PROFIdrive"
6 7
Function diagram
SINAMICS DCM
The Encoder Data Set
switchover is shown on
[8570].
To speed
act. value
sensing
[4710.1]
[4711.1]
<2> <4>
Enc Gn_XIST1
r0482[n-1]
[4735.5]
Diag Gn_XIST1
r0479[n-1]
<2> <5>
Load gear abs_val
r2723[n-1]
<2> <5>
Enc Gn_XIST2
r0483[n-1]
[4730.2]
8
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